Apparatus for manufacturing tubes.



31 8573348. .PATBNTED JUNE 18,- 1907.

s, v. HUBER. APPARATUS FOR MANUFACTURING TUBES.

APPLICATION FILED'JULYIZQ, 1904.

J w W ATT RNgY.

UNITED srATns PATENT OFFICE.

Specification of Letters Patent APPARATUS FOR MANUFACTURING TUBES.

Patented June 18, 1907.

' Application filed July 29,1904. SerialNo-218fl37.

Tod till whom it ni ety concern; 1 3e it known that I, SIGMUND V. HUBER, a citizen of the United States of America, re-

siding at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented or discovered new and useful Iminto the welding are the two Openings Land 5.

p rovements in Apparatus for Manufacturing ubes, of which the following is a specificanon;

My invention'relates to apparatus for making' lap-weld tubes, and more es the apparatus for chargingthe tu ular skelp furnace and drawing of the same therefrom intowelded pipe.' The flat plates are charged into the rear of abending rnace'and'drawn' at the opposite end of the furnace into tubular skelp which are transferred transversely of their length to the charging apparatus of the welding furnace,

lying beside the bending furnace.

My invention has special reference to the combination of the welding furnace and the chargingand welding mechanisms associated therewith. 1

The drawing shows co paratus which employ, shown in horizontal section.

- 1 represents the welding furnace having at its rear end the two s'kelp charging openings 2 and 3 one situated at one side of the center line of the furnace and the other at the other side thereof. -Between the openings 2 and 3 i The front of the furnace has the two openings 6 and 7, which are opposite the rear openings 4 and 5. At the rear of the openings 2 and 3 are the two cars or-carriages 8 and 9, respectively, moved back and forth by means of the motor 10 and gearing 11, constructed in any apventi onally the approved manner-to actuate the cars. the particular mechanism for doing this being iin aterial to the present invention.

anism for moving it, farther than I provide a separate pusher for each charging opening and do not give the pusher lateral movement to charge inskelp At the front end of the furnace 1 place the eciallyto bars 27 and the furnace being draulic cylinders transversely across the.

' furnace so as to receive the heated skelp from either opening 6 or 7. r

16 represents the roll driving motor and 17 the gearing connecting tor. This gearing may be variously constructed, and the motor and gearing may be stationary or they, with the rolls, may be mounted on the same traveling platform. In case the motor and gearing are stationary, the driving spindles as 18, may be telescopic pr the travel of the rolls otherwise provided Theiroll housing carries with it the pipe receiving trough 19'and the skids 20, preferably telescopic, down which the pipes are rolled after welding.

Atthe rear'of the trough 19, Imount'two stationary bar pullers represented by rollers 21 and 22 driven by the motor 23 and gearing 24. 25 and 26 are tables for carrying the 28 back out of the welded tubes and back to the rolls 15. 29 and 30 are back stops for-the bars.

' 'il-heoperatio-n of my invention is as follows; One of the cars 8 or 9 is brought opposite the ends ofthe skids 12 and a tubular skelp isrolled along the latterand upon the at both sides of the f urnace.

car, but it is immaterial transferred to the car. started forward and when'itreaches the rear of the furnace the corresponding pusher 13 or '14 is brought forward and pushes the skelp from the car into the 'furnace. .While this is being done another "skel. is' being placed on the other car. As the rsticar returns for another skelp the second car conveys to the furnace its pipe which is.,.pharged into the furnace by the other puslner. The drawing shows the pusher 14 pushing a skelp from the car 9 into the furnace, the car 8 being returned almost to its position for receiving a skelp.

Each pi e is rolled by hand from the position, in wiich it was charged, toward the center of the furnace and finally rests opposite one of the openings 4 or '5. After the skelp have been moved-from their first posi tions, fresh skelp are charged in through the charging openings 2 and 3 as above described.

When one of the skelp opposite the openings 4 or 5 is ready for welding the pusher S1 is moved up and pushes the slrelpthrough how the skelp is the opening-fi er 7 into the-welding rolls 15,

The car is then the rolls and'the mo- 2' v senses I over the bar 27 or 28 and the mandrel 32 on rolls, adjusting the rolls, and pulling and re turning the bars is repeated ad lithium; 2 5 the end of the bar. As soon as the pi e has The specific construction of the several passed through the rolls the bar is released I mechanismsemployed by me is not made a and the corresponding bar puller 21 or 2-2 part of this invention and in no instance is withdraws the same from the pipe and any showing intended'to be'other than conas shown on the drawing. The pipe passes shoves it back on the table 25 or 26. The ventional, as I intend to inoliide within my o bar 28 is shown Withdrawn. The rolls 15 invention all constructions which read fairly and trough 19 are then moved over opposite on my claims irrespective of the specific the other opening 6 or 7 and the'other bar is mechanisms'emp'loyed. pulled from its table 25 or 26 to its for Ward Having described my invention, I claim:-

position, with its mandrel between the rolls In a tube mill, a transversely movable set 5 I 15. The 'pusher 3l, having been previuosly of rolls and separate stationary means for withdrawn and had its pusher arm moved Withdrawing mandrel bars from their posiopposite the pipe which is in-line Withthe tion relative to the rolls, the said set of rolls 0] s, then moves forward and the skelp is adapted to be brought intoalinement with welded in the same manner-as the precedthe said Withdrawing means. 40' ing skelp. In thisoase the second bar puller Signed at Pittsburg, this 28th day of July, Withdraws the bar just used and the first A. D. 1904/ bar puller returns its bar to normal position. SIGMU ND V. HUBER.

The operation of charging fresh skelp into Witnesses: the openings 2 and 3, moving them opposite Y F. N. BARBER,-

the openin s 4 and 5,'pushing them into the A. M. STEEN. 

